50 POINT!!!!!!!!!!!!!

Genna can build a cabinet in 4 hours. Claude can build a cabinet in only 3 hours.


Which of the following can be used to determine the amount of time it would take for Genna and Claude to build a cabinet together?



A)1 over 4 plus 1 over x equals 1 over 3

B)1 over 4 plus 1 over 3 equals 1 over x

C)1 over x plus 1 over 3 equals 1 over 4

D)1 over 3 plus 1 over 4 equals x over 7